枕动脉的多层螺旋CT血管造影及不同重建方法间的比较

doi:10.16150/j.1671-2870.2020.01.016

摘要/Abstract

摘要：

目的：探讨头颅多层螺旋CT血管造影（multi-slice spiral CT angiography, MSCTA）对枕动脉（occipital artery, OA）的显示能力及临床应用价值。方法：对80例头颅MSCTA原始图像数据分别进行遮盖容积重建（shade volume rendering,SVR）、最大密度投影（maximal intensity projection, MIP）、曲面重建（curved plannar reconstruction, CPR）处理,测量OA起始处及枕动脉沟中点处管径,并由2位医师分别评价3种重建图像的质量。结果：左侧OA起始处及枕动脉沟中点处管径分别为（2.33±0.26） mm、（2.32±0.24） mm;右侧OA起始处及枕动脉沟中点处管径分别为（2.28±0.24） mm、（2.30±0.25） mm。SVR与MIP间的图像质量评分差异无统计学意义（t=1.91,P>0.05）,且均高于CPR（t=10.70、t=-10.03,P均<0.01）。结论：头颅MSCTA后处理SVR图像能清晰、准确地显示OA的解剖结构及走行,MIP图像能清晰显示血管本身情况,结合两者可以准确评估OA。

关键词: 枕动脉, 多层螺旋CT血管造影, 诊断

Abstract:

Objective: To assess the performance and clinical significance of head MSCT angiography（MSCTA） in displaying occipital artery（OA）. Methods: The primeval MSCTA imaging data of 80 cases were processed with three reconstruction methods respectively,including shade volume rendering（SVR）, maximal intensity projection（MIP）and curved plannar reconstruction（CPR）, and the diameters of OA at origin and of occipital artery groove at the midpoint were measured. The quality of images derived from the three reconstruction methods were evaluated. Results: The left OA diameter was (2.33±0.26) mm at the origin, and (2.30±0.24) mm at the midpoint of occipital artery groove. The right OA diameter was (2.28±0.24) mm at the origin, and (2.30±0.25) mm at the midpoint of occipital artery groove. The quality of image constructed by SVR and MIP showed no significant difference (t=1.91, P>0.05), however, SVR and MIP yielded image with higher quality than CPR（t=10.70, t=-10.03, P<0.01）. Conclusions: Both SVR and MIP assist visualization of the anatomic structure of OA in head MSCTA.

Key words: Occipital artery, Multi-slice spiral CT angiography, Diagnosis

中图分类号:

R445.4

孙芙蓉, 陈克敏, 潘自来, 徐敬慈, 饶敏. 枕动脉的多层螺旋CT血管造影及不同重建方法间的比较[J]. 诊断学理论与实践, 2020, 19(1): 80-83.

SUN Furong, CHEN Kemin, PAN Zilai, XU Jingci, RAO Min. Comparison of different image reconstruction methods in MSCT angiography of occipital artery[J]. Journal of Diagnostics Concepts & Practice, 2020, 19(1): 80-83.

图/表 2

参考文献 13

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医师	重建方法	5分	4分	3分	合计
医师一	SVR	89	53	18	160
医师二	SVR	94	57	9	160
医师一	MIP	84	54	22	160
医师二	MIP	66	57	37	160
医师一	CPR	59	71	30	160
医师二	CPR	71	81	8	160

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